Ratchet bumper



FIG. 1 is a perspective view of a ratchet bumper of the new design;

FIG. 2 is a front elevational view of the ratchet bumper of FIG. 1;

FIG. 3 is a right side elevational view of the ratchet bumper of FIG. 1;

FIG. 4 is a rear elevational view of the ratchet bumper of FIG 1;

FIG. 5 is a top plan view of the ratchet bumper of FIG. 1;

FIG. 6 is a left side elevational view of the ratchet bumper of FIG. 1; and,

FIG. 7 is a bottom plan view of the ratchet bumper of FIG. 1.

The portion of the Figures shown in broken lines is for illustrative purposes only, and forms no part of the claimed design. 

The ornamental design for a ratchet bumper, as shown and described. 